saascode

Listingledger

A real-estate activity evidence ledger that captures timestamped work, source artifacts and property and entity mappings, then prepares accountant-review workpapers without applying tax status or passive-loss conclusions automatically.

Genesis score6.21/10
Make Listingledger real.0/500
500 more votes and Listingledger is authorized for build.
0%500 to authorize
Backing is the vote. When an idea crosses 500, we pull it into the build pipeline and ship it for real — the votes decide what gets built next, not an editor.
The opportunity
2Confirmed individual-focused competitors
0Verified entity-aware competitors
The case

Real-estate owners may need to substantiate time and activities across properties, ownership entities and management work. Listingledger collects contemporaneous entries through private messages, calendar evidence and manual correction, then maps each activity to the relevant property and entity for review. The input improperly combines individual real-estate-professional tests, material participation, passive-loss treatment and exchange timelines into an entity-level deductibility gate. Those are fact-specific tax questions involving the individual, activities, ownership, elections, grouping and current law. The product records evidence and prepares workpapers; a qualified tax professional determines treatment. A timestamp helps establish when an entry was made but does not prove the activity occurred, qualifies, was performed by the taxpayer or will be accepted in an examination. Calendar imports and messages are corroborating observations, not automatic hours. Source event, claimant entry, activity classification candidate, property and entity mapping, reviewer correction, tax-professional disposition, return instruction, filing acknowledgement and examination outcome remain separate. The product can improve record discipline. It cannot create audit-proof logs, guarantee deductions or replace tax advice.

Who pays — and why

A real-estate owner with multiple properties or ownership entities working with an accountant who wants timely, source-linked participation records.

Market signalValidate by taxpayers, properties, entities, activities, monthly entries, reviewer seats and annual workpaper exportsTax workpaper tools, participation trackers and accountant services are observed market references, not fixed product pricing
What it unlocks
A tax-professional-reviewed evidence taxonomy defining person, ownership entity, property, activity, role, source type, contemporaneous entry, correction and unsupported classification.
A provenance model separating calendar or message observation, taxpayer assertion, time interval, business purpose, artifact, property mapping, entity mapping, reviewer note and uncertainty.
A review chain from frozen period through duplicate and overlap checks, taxpayer attestation, accountant disposition, export, exact return instruction, filing acknowledgement and later correction.
How Genesis scored it
6.21across seven criteria
tension 6temporal 6blindspot 5buyer 8leverage 8convergence 5why-not 5
8
Buyer persona

Multi-property owners and their accountants are concrete users and buyers.

8
Asymmetric leverage

Evidence capture and exports scale in software, though annual review and tax-rule nuance add support.

5
Why nobody did it

Existing products validate individual tracking while entity and property mapping remains less served.

Why it scored well

A clear real-estate owner and accountant workflow plus two confirmed individual trackers support a narrower evidence-ledger opportunity.

What's holding it back

Tax doctrine is fact-specific, the entity-level gap is only a reviewed search result, one interface is unverified and accounting platforms can add similar records.

Signals detected3 sources crossed
SignalCompetitor research

SignalMarket research

SignalInput risk review

Direction brieflistingledger-participation-evidence.md
listingledger-participation-evidence.md
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